A novel rectangular patch antenna with double L-probe fed for RADAR altimeter application
2016
In the paper, a printed patch antenna with a rectangular slot is presented for RADAR altimeter application. The antenna is composed of single layer air substrate with double L-Shaped probe feed oriented 90° apart from each other and also with a shorting pin for impedance matching purpose. The measurements show that the antenna has a reflection coefficient bandwidth (S11 ≤ 20dB) of 4.6% (4.2 ∼ 4.4 GHz) with a center frequency of 4.3 GHz and a gain of about 5.95 dB. The proposed antenna can be used for RADAR altimeter which are operating at 4.2 ∼ 4.4 GHz band. A parametric study of geometric variation of L probe is given for clear understanding of radiation mechanism.
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